I wish to study Theology, and become a Christian Minister. Where can I get Online lesons free?

You can look through these

free online theological courses - Google Search

Another thing you can try is typing a specific topic you want to study in the search engine
And you can learn a lot that way. theological topics - Google Search

Like if you want to study about ecclesiology or God's omninpresence type that into the search engine.

If you type Bible topics in you will get a lot of sites like this

Topics, verses, and scriptures on various subjects

There are a lot of end times sites too these are just some

end times - Google Search


Some good theologians you can study are
R.C. Sprouls
Dietrich Bonhoeffer
Charles H. Spurgeon
Smith Wigglesworth